SN4 ""

No	Pattern	Freq
1	[noun] who have had [adj] [noun sg]	33
2	[noun pl] who have had [adj] [noun sg]	23
3	[adj] who have had [adj] [noun sg]	10
4	[det] who have had [adj] [noun sg]	9
5	patient who have had [adj] [noun sg]	8
6	[noun sg] who have had [adj] [noun sg]	8
7	those who have had [adj] [noun sg]	7
8	patients who have had [adj] [noun sg]	7
9	those who have had [adj] [noun sg]	7
10	[indef pn] who have had [adj] [noun sg]	5
11	[pron] who have had [adj] [noun sg]	5
12	who have [adv] had [adj] [noun sg]	21
13	who have not had [adj] [noun sg]	11
14	who have [not/n't] had [adj] [noun sg]	11
15	who have [adv] had [adj] [noun sg]	10
16	who have not had [adj] [noun sg]	8
17	who have had [art] [adj] [noun sg]	65
18	who have had [art] [adj] [noun sg]	65
19	who have had a [adj] [noun sg]	55
20	who have had a [adj] [noun sg]	44
21	who have had an [adj] [noun sg]	11
22	who have had [adj] [adj] [noun sg]	11
23	who have had the [adj] [noun sg]	7
24	who have had the [adj] [noun sg]	7
25	who have had [det] [adj] [noun sg]	7
26	who have had [adv] [adj] [noun sg]	6
27	who have had [adv] [adj] [noun sg]	6
28	who have had [adj] [adj] [noun sg]	11
29	who have had [adj] [adj] [noun sg]	11
30	who have had [adj] [noun sg] [noun sg]	5